This is not an in-depth look at all of the research on the brain (such a resource would fill stacks of books). Instead, the goal of this brain tour is to familiarize you with major brain structures and their functions. The cerebral cortex is the part of the brain that functions to make human beings unique.
Advice. As your child gets older, advice for the next year can be good to write in his birthday card. Don't give him a lecture, but rather something that is positive, encouraging or inspiring.
On a baby card, you can direct your message to the parent(s), to the whole family or even to the baby. (Yes, really!) Choose whom you really want to talk to, and let it shape what you write.